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Progressivism.
the wage system
representing an increase in the available labor force
The effect of movement of early people is that the world's population grew.
higher prices required the creation of new factories to provide jobs
specialized, cash crop agriculture
representing an increase in the available labor force.
Interchangeable Parts
Lowell, Massachusetts
England and America
People left farms and moved to the cities
Since early industrialization in the 1940's
Ruth A. Wilson has written: 'Starting early' -- subject(s): Environmental education, Environmental sciences, Study and teaching (Early childhood)
cheese
the wage system
Progressivism.
industrialization and the growth of cities